diff options
Diffstat (limited to 'src/vnet/ip/ip_frag.c')
| -rw-r--r-- | src/vnet/ip/ip_frag.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/src/vnet/ip/ip_frag.c b/src/vnet/ip/ip_frag.c index 230722c45db..54efb63c986 100644 --- a/src/vnet/ip/ip_frag.c +++ b/src/vnet/ip/ip_frag.c @@ -200,6 +200,17 @@ ip4_frag_do_fragment (vlib_main_t * vm, u32 from_bi, u32 ** buffer, clib_memcpy_fast (to_b->data, org_from_packet, sizeof (ip4_header_t)); to_ip4 = vlib_buffer_get_current (to_b); to_data = (void *) (to_ip4 + 1); + vnet_buffer (to_b)->l3_hdr_offset = to_b->current_data; + to_b->flags |= VNET_BUFFER_F_L3_HDR_OFFSET_VALID; + + if (from_b->flags & VNET_BUFFER_F_L4_HDR_OFFSET_VALID) + { + vnet_buffer (to_b)->l4_hdr_offset = + (vnet_buffer (to_b)->l3_hdr_offset + + (vnet_buffer (from_b)->l4_hdr_offset - + vnet_buffer (from_b)->l3_hdr_offset)); + to_b->flags |= VNET_BUFFER_F_L4_HDR_OFFSET_VALID; + } /* Spin through from buffers filling up the to buffer */ u16 left_in_to_buffer = len, to_ptr = 0; @@ -232,6 +243,7 @@ ip4_frag_do_fragment (vlib_main_t * vm, u32 from_bi, u32 ** buffer, } to_b->current_length = len + sizeof (ip4_header_t); + to_b->flags |= VNET_BUFFER_F_IS_IP4; to_ip4->fragment_id = ip_frag_id; to_ip4->flags_and_fragment_offset = @@ -241,6 +253,9 @@ ip4_frag_do_fragment (vlib_main_t * vm, u32 from_bi, u32 ** buffer, to_ip4->length = clib_host_to_net_u16 (len + sizeof (ip4_header_t)); to_ip4->checksum = ip4_header_checksum (to_ip4); + /* we've just done the IP checksum .. */ + to_b->flags &= ~VNET_BUFFER_F_OFFLOAD_IP_CKSUM; + if (vnet_buffer (org_from_b)->ip_frag.flags & IP_FRAG_FLAG_IP4_HEADER) { /* Encapsulating ipv4 header */ @@ -482,6 +497,19 @@ ip6_frag_do_fragment (vlib_main_t * vm, u32 from_bi, u32 ** buffer, to_frag_hdr = (ip6_frag_hdr_t *) (to_ip6 + 1); to_data = (void *) (to_frag_hdr + 1); + vnet_buffer (to_b)->l3_hdr_offset = to_b->current_data; + to_b->flags |= VNET_BUFFER_F_L3_HDR_OFFSET_VALID; + + if (from_b->flags & VNET_BUFFER_F_L4_HDR_OFFSET_VALID) + { + vnet_buffer (to_b)->l4_hdr_offset = + (vnet_buffer (to_b)->l3_hdr_offset + + (vnet_buffer (from_b)->l4_hdr_offset - + vnet_buffer (from_b)->l3_hdr_offset)); + to_b->flags |= VNET_BUFFER_F_L4_HDR_OFFSET_VALID; + } + to_b->flags |= VNET_BUFFER_F_IS_IP6; + /* Spin through from buffers filling up the to buffer */ u16 left_in_to_buffer = len, to_ptr = 0; while (1) @@ -551,6 +579,7 @@ VLIB_REGISTER_NODE (ip4_frag_node) = { .n_next_nodes = IP4_FRAG_N_NEXT, .next_nodes = { [IP4_FRAG_NEXT_IP4_REWRITE] = "ip4-rewrite", + [IP4_FRAG_NEXT_IP4_REWRITE_MIDCHAIN] = "ip4-midchain", [IP4_FRAG_NEXT_IP4_LOOKUP] = "ip4-lookup", [IP4_FRAG_NEXT_IP6_LOOKUP] = "ip6-lookup", [IP4_FRAG_NEXT_MPLS_OUTPUT] = "mpls-output", @@ -574,6 +603,7 @@ VLIB_REGISTER_NODE (ip6_frag_node) = { .n_next_nodes = IP6_FRAG_N_NEXT, .next_nodes = { [IP6_FRAG_NEXT_IP6_REWRITE] = "ip6-rewrite", + [IP6_FRAG_NEXT_IP6_REWRITE_MIDCHAIN] = "ip6-midchain", [IP6_FRAG_NEXT_IP4_LOOKUP] = "ip4-lookup", [IP6_FRAG_NEXT_IP6_LOOKUP] = "ip6-lookup", [IP6_FRAG_NEXT_MPLS_OUTPUT] = "mpls-output", |